One problem with this is that you're not learning words here, you're just learning standalone kanji. 引く normally means "to pull", but it's more commonly used in compounds like 強引 or 引力, or compound verbs like 引き受ける. It seems like what you tried to do here is use the kanji by itself if at all possible, and only use a compound word if the kanji could not stand by itself.

Some of your corrections aren't necessary. There's nothing wrong with は好きです in the context because he's contrasting it with something else that he likes better. You can say 水曜日は to talk about things that are happening on Wednesday. 魚が怖い is fine; it means "I'm scared of fish" or "the fish are scary".

園（その） is not the usual word for "park"; use 公園 instead. 公園で歩く, 公園に歩く, and 公園を歩く are all correct but they mean three different things (roughly "walk around the park", "walk to the park", "walk through the park").

Technically there's nothing wrong with 数（を）勉強します if you literally mean that you are studying numbers at school. 数学 means "mathematics" but that would have a slightly different meaning.

Last edited by Yudan Taiteki on Wed 11.22.2006 9:14 am, edited 1 time in total.